Wtorek J, Poliñski A, Stelter J, Nowakowski A
Department of Medical and Ecological Electronics, Technical University of Gdañsk, Poland.
Technol Health Care. 1998 Sep;6(2-3):177-93.
The construction of the cell for measurement of complex electric conductivity is described. Two-chamber and four-electrode system with temperature stabilisation is developed. Guarding chamber and electrodes are used to minimise the leakage of current from the measurement chamber. The cell construction is examined by use of Finite Element Method. The model of the measurement cell is examined in order to improve the accuracy of measurements. The calibration procedure based on measurement of reference materials is presented. The frequency range of the cell is extended to 10 MHz with acceptable level of error. The examples of results from measurement breast normal and cancerous tissues are presented.
描述了用于测量复电导率的电池的构造。开发了具有温度稳定功能的双腔四电极系统。使用保护腔和电极来最小化测量腔中的电流泄漏。通过有限元法检查电池结构。检查测量电池的模型以提高测量精度。提出了基于参考材料测量的校准程序。电池的频率范围扩展到10 MHz，误差水平可接受。给出了测量乳腺正常组织和癌组织的结果示例。
